* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

header h1 {
    padding: 1rem 0;
    color: #2c3e50;
    font-size: 1.5rem;
}

main {
    min-height: calc(100vh - 120px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
}

.hero {
    width: 100%;
}

.profile-card {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    max-width: 400px;
    margin: 0 auto;
}

.avatar {
    margin-bottom: 1.5rem;
}

.avatar img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #e0e0e0;
}

h2 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.8rem;
}

p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: #f8f9fa;
    color: #495057;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.social-link:hover {
    background-color: #007bff;
    color: white;
    transform: translateY(-2px);
}

footer {
    background-color: #fff;
    text-align: center;
    padding: 1rem 0;
    box-shadow: 0 -2px 5px rgba(0,0,0,0.1);
}

footer p {
    color: #666;
    margin: 0;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .profile-card {
        padding: 1.5rem;
        margin: 0 1rem;
    }
    
    .avatar img {
        width: 120px;
        height: 120px;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .social-link {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.2rem;
    }
    
    .profile-card {
        padding: 1rem;
    }
    
    .avatar img {
        width: 100px;
        height: 100px;
    }
    
    h2 {
        font-size: 1.3rem;
    }
    
    p {
        font-size: 0.9rem;
    }
}
